參數(shù)資料
型號: VSC8021
廠商: Vitesse Semiconductor Corporation.
英文描述: 2.5Gb/s SONET-Compatible 8-Bit MUX/DEMUX Chipset
中文描述: 容量高達(dá)2.5GB / s的SONET的兼容8位/解復(fù)用器芯片組
文件頁數(shù): 3/17頁
文件大?。?/td> 220K
代理商: VSC8021
VITESSE
G52028-0, Rev 4.1
05/25/01
Page 3
VITESSE
SEMICONDUCTOR CORPORATION
741 Calle Plano
Camarillo, CA 93012
Tel: (800) VITESSE
FAX: (805) 987-5896
Email: prodinfo@vitesse.com
Internet: www.vitesse.com
Data Sheet
VSC8021/VSC8022
8-Bit MUX/DEMUX Chipset
2.5Gb/s SONET-Compatible
VSC8022
The VSC8022 contains both a 1:8 demultiplexer and SONET frame recovery circuitry. The 1:8 demultiplexer
accepts a serial data input (
DI, DIN
) at rates up to 2.5Gb/s and converts it into 8 parallel differential ECL data outputs
(
D1-D8, D1N-D8N
) at rates up to 312.5Mb/s. Valid parallel data outputs are indicated by the divide by 8 differential
clock outputs
BYCKO, BYCKON
.
The VSC8022 also contains a SONET frame recovery circuit. The frame recovery circuits are enabled by a fall-
ing edge on the
OOFN
ECL input when the
FDIS
input is low. Once enabled, the frame recovery circuit starts look-
ing for the SONET framing sequence. Once the frame is detected, the word boundary is realigned, a confirmation
signal is sent off-chip through the
FP
ECL output and the frame recovery circuits are disabled. While the frame
aligner is hunting for the frame,
BYCKO, BYCKON
and parallel data are invalid.
Figure 2: VSC8022 Block Diagram
Frame recovery circuits are disabled by frame detection (resulting in FP) or by a falling edge on the OOFN
input while FDIS is high.
Parallel
Data Outputs
Serial Data In
1:8
Demultiplexer
Timing
Generator
High Speed
Clock Inputs
Frame Detection Signal
DI
D1
D1N
CLKI
CLKIN
DIN
Byte Clock Out
BYCKO
BYCKON
FP
D8
D8N
SONET
Frame
Detection &
Recovery
FDIS
OOFN
Frame Recovery Disable
Frame Recovery Clock
相關(guān)PDF資料
PDF描述
VSC8062 2.5Gb/s 16-Bit Multiplexer/Demultiplexer Chipset
VSC8062FC 2.5Gb/s 16-Bit Multiplexer/Demultiplexer Chipset
VSC8062FI 2.5Gb/s 16-Bit Multiplexer/Demultiplexer Chipset
VSC8062QH 2.5Gb/s 16-Bit Multiplexer/Demultiplexer Chipset
VSC8111QB ATM/SONET Transceiver
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
VSC8021FC 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:2.5Gb/s SONET-Compatible 8-Bit MUX/DEMUX Chipset
VSC8021FI 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:2.5Gb/s SONET-Compatible 8-Bit MUX/DEMUX Chipset
VSC8022 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:2.5Gb/s SONET-Compatible 8-Bit MUX/DEMUX Chipset
VSC8022FC 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:2.5Gb/s SONET-Compatible 8-Bit MUX/DEMUX Chipset
VSC8022FI 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:2.5Gb/s SONET-Compatible 8-Bit MUX/DEMUX Chipset